Cooling means for internal-combustion engines



W. A. HORTHY. COOLING MEANS FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED APR.25, I917.

Patented Mar, 23, 192% 2 SHEETS-SHEET 1- 3w RN QM A IIIML H ummmwm fl I|l mmmlill llllll mm llllllllllll a N 33% N W. A. HORTHY.

COOLING MEANS FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED APR. 25, I917.

Patented M11223, 1920.

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WILLIAM A. HORTHY, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, IO INTERNATIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

COOLING MEANS FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Mar. 23, 1920.

Application filed April 25, 1917. Serial No. 164,439.

t having one spacious compartment therein,

said compartment being rectangular or square shaped and having a large opening at the top thereot. Some objectionable features present then'iselves. in this type of hopper. First, the hopper being of a square or rectangular shape and the top and side walls being at right angles to each other, water in the hopper under the heating influence during the operation of the engine, is caused to boil thus causing steam to be formed which rises and accumulates in the square corners at the top of the hopper form ing detrimental. steam pocket-s. Secondly, the boiling water in such a hopper causes bubbling and splashing of hot water out of the opening at the top of the hopper. Further more, in such hoppers, etlicient cooling of the heated water and a proper circulation ot the same is not possible.

It is therefore one object of my invention to overcome the formation of steam pockets in a water containing hopper and to prevent the splashing of water out of the hopper.

Another object is to increase the heat dissipation of water used for cooling internal combustion engines.

These objects are accon'iplished by providing in combination with the cylinder oi an internal combustion engine a hopper so constructed that no steam pockets can be formed therein, and in which hopper a thern'io-siphon system of circulation may be effected.

More specifically stated the objects are accomplished by providing in combination with a water jacket of an internal combustion engine, a hopper having an inclined upper wall, a partition spaced from the bottom of the hopper to form a lower opening and having an opening in the upper end thereof,

whereby the hopper is divided into two compartments, in one of which the cooling water becomes heated, rises and flows through the upper opening into the other compartment, where it dissipates heat and lowers in a cooler state and passes through the lower opening into the first compartment to take the place of rising heated water, any steam formed in the first compartment passing into contact with and along the, inclined wall through the upper opening to condense or pass into the air.

The invention is illustrated in the accompanying sheets of drawings in which- Figure 1 is a side view of an engine, parts being broken away and shown in section, including my invention;

Fig. 2 is a plan view of the same, and

Fig. 8 is a sectional view of the partition or wall in the hopper taken along line 3-3 of Fig. 1.

The same reference numerals designate like parts throughout the several views.

This engine includes an integrally formed base and crank case 10 in the latter of which is j onrnaled a crank shaft 11 having mountedthcreon fly wheels 12 and 13. A connecting rod 14: connects the crank shaft 11 with a piston 15 which is arranged to be reciprocated in a cylinder 16.

Surrounding the cylinder is a. water jacket 17 and communicating with the water jacket is a hopper. This hopper includes. two end walls 18 and 19; side walls :23 and 24:, and a partition 20 which divides the hopper into two compartments 21 and 22. This vertical partition 20 connects the side walls and '24 and the lower end thereof is spaced from the upper portion of the cylinder 16 to term an opening 28' which in combination with an opening 27 in the upper part of the partition 20 permits the water to circulate from one compartment to the other. Integral with the end wall 19 and inclined upwardly and rearwardly is a wall or cover portion 2? which joins the partition. 20 and then extends vertically upward forming one wall of an opening 26. At the junction of the walls 25 and 20 the opening 27 is formed in the partition 20.

As is well. known the heat of compression and combustion very rapidly raises the tern perature of that part of the cylinder known as the combustion chamber. As a result thereof cooling water which surrounds that part or the cylinder becomes heated, sometimes excessively so, which not only causes a rising of the hot water but also changing the water to steam. Any steam thus formed rises in the hopper, comes in contact with the inclined wall 25 and having no pockets in which to accumulate the steam naturally travels or creeps upwardly along said inclined wall and escapes through the opening27. The steam either passes out through opening 26 into the atmosphere or recondenses in the upper portion of the compartment 22.

Also as a result of this hopper construction the cooling water which becomes heated as a result of the heat of compression and combustion rises in'one of the compartments 21, passes through upper opening 27 into the other compartment 22 where the water liberates some of its heat and'passes downwardly through compartment 22 in a cooler state and through opening 28, completing its cycle to again absorb and thereby cool to a certain extent the combustion chamber of the cylinder 16. In this manner an eflicient thermo-siphon cooling system is efi'ected in the hopper cooled type of en gine, and all steam pockets with their accompanying troubles avoided.

It is evident that there may be modifications in the form and arrangement herein disclosed, and it is my .intention to cover all such modifications which do not depart from the spirit of my invention.

' IVhat I claim as new is:

*1. In an internal combustion engine, a cylinder, a water jacket surrounding said cylinder, a hopper communicating therewith having a plurality of'compartments, one of which covers the head end of the cylinder and is closed, the other of which is open, communication being had at the top and bottom of said compartments.

2. In an internal combustion engine, a cylinder, a water jacket surrounding said cylinder, and a hopper communicating therewith having a plurality of compartments and having an inclined portion permitting the creepage of vapor therealong from'one compartment to another.

3. In an internal combustion engine, a cylinder, a water jacket surrounding said cylinder, a hopper communicating there with having a plurality of compartments one of which is inclosed by an inclined wall, and means wherebythe water may rise in one compartment, pass along said inclined wall into a second compartment, move downwardly therein into the water jacket, and then pass into the first compartment.

4L. In an internal combustion engine, a cylinder, a water jacket surrounding said cylinder, a hopper communicating therewith, an apertured wall in said hopper dividing the hopper into a plurality of compartments, and an inclined wall covering a portion of said hopper along which vapor will travel from one compartment into another. 1

5. In an internal combustion engine, a cylinder, a water jacket surrounding said cylinder, a hopper integral with the cylinder and communicating therewith divided into compartments one of which is closed, and means whereby the water is caused to circulate from one compartment to another.

6. In an internal combustion engine, :1 cylinder, a water jacket surrounding the cylinder, a hopper above and communicating with said jacket, said hopper having two compartments, one of which is covered and the other open.

7. In an internal' combustion engine, a cylinder, a water jacket surrounding the cylinder, a hopper communicating therewith, a wall dividing said hopper into a plurality of compartments, an inclined portion covering one compartment, and an opening at the junction of said wall and inclined portion whereby fluid is caused to flow from one compartment to the other.

8. In an internal combustion engine, acylinder, a water jacket surrounding the cylinder, an open hopper and a closed compartment separated by a bafiie and communicating with the water jacket, a connnunieating opening at the top of the baflie, and a top on the closed compartment slanting toward said opening whereby heated water rising in the closed compartment will flow toward the opening thereby causing circulat1on.

9. In an internal combustion engine, a cyl inder, a water jacket surrounding the cylinder, a reservoir above the water jacket open to the atmosphere and means tending to condense any steam that is generated comprismg a cooling surface with which the steam generated must come in contact before reaching the atmosphere.

In testimony whereof I affix my signature.

WILLIAM A. HORTHY. 

